Grate.



nu. sas-,322. vPawnee une. 4, |900. n wlLsoN GRATE.

(Appl t nl dJun 7 1900) (No Model.)

i: un

v tra HENRY IVILSON, OF QUINOY, ILLINOIS, ASSIGNOR TO THE THOMAS -VHITE OF SAME PLACE.

GRATE.

SPECIFICATION forming part of Letters Patent N o. 663,377, dated December 4, 1900.

Application filed June 7, 1900.

ing and retaining in position the dump-bar,

which oscillates toward and from a rotating bar at one side thereof.

The invention has as a further object to improve the structure of frame or casting adaptzo ed to receive and contain the grate-bar and to permit a reciprocatory motion of the dumping-bar when it is desired to disengage the same from its holding means.

Other objects and advantages of the invendescription, and the novel features thereof will be particularly pointedout in the appended claims.

In the drawings, Figure l represents a plan 3o of the grate. Fig. 2 is a vertical section on the line 2 2 of Fig. l, and Fig. 3 is a similar view on the line 8 3 of Fig. l.

Like letters of reference indicate like parts throughout the several igures of the drawings.

The letter A designates the grate frame or rest, adapted to receive and contain a rotating grate-barB and an oscillatory bar O. The frame A is provided with sockets A, Within which the extended pintles B of the rotating bar B rest, and with a similar socket or bearing A2 for the pintles C/ of the oscillating dump-bal: The end C2 of one of the pintles of this bar is adapted to receive a suitable operating-handle. The back of the frame A is provided with the usual form of supporting-ange A3 and one end of said frame with the plate A4 extending beyond the ends of the grate-bars and over the extended pintles thereof.

The rotating grate-bar B may be of any tion will hereinafter appear in the following Serial No. 19,415. (No model.)

desired construction; but a preferred form thereof is shown in thev drawings, which consists of a cylinder B2, having apertures B3 therein and radially-extending teeth B4,whiel1 55 in their rotation toward the dump-grate C clear the fire of loose ashes and tend to break up cinders or clinkers, so that they Will pass `through 'the space allowedwhen the dumping-grate is held in a fixed position, which is 6o its-normal relation to the rotating grate. This structu re of grate prevents the warping thereof by excessive heating and forms a means for quickly clearing lthe fire, while the cylindrical` form thereof feeds air to the same, and thereby improves the draft.

The dumping bar or grate C extends longitudinally of the rotating grate-bar B and is preferably formed with apertures O2 therein, which are beveled downwardly from the up- 7o per face ofthe grate, as clearly shown in Figs.

2 and 3, thus permitting a free discharge of any ashes which may rest. upon the bar. This bar is supported at one end upon a flange or rest A5, upon which the lower surface ofthe bar A is normallysupported, while the opposite end of this bar C is held against downward rotary or oscillatory movement by means ofthe stop-lug C3, which rests against the wall A6 at one side of the journaling-socket A2, 8o thus limiting the oscillatory movement of the dumping-bar and supporting the same at both ends. Then it is desired to oscillate or dump this bar, the saine is reciprocated longitudinally, which moves the end of the bar from the rest A5 and lthe lug C2 from its contact with the wall A, permitting the bar C to drop downward, as shown by dotted lines in Figs.

2 and 3, so that large clinkers or other ashes may be cleared from the grate. This opera- 9o tion can also be assisted by rotating the grate B when the oscillating grate is dumped. The reci procation of the grate C in one direction may be limited by the lug A7.

The operation of the several parts will be apparent from the foregoing description, from which it Will be seen that if the clinkers are too large or hard to be ground into small particles by the projecting teeth of the cylinder said cylinder maybe turned toa point which loo will bring such clinkers into position upon the grate, which may then be dumped in connection with the rotation of the grate B, thus removing from the [ire-box any clinkers or other matter without dumping the body of lire above the saine. Of course if it`be desired to clean out the grate the dumping-section may be shifted into its lowered position and the grate B rotated so as to cover the contents of the fire-box downward into the ashpit. It will therefore be seen that the grate C is mounted for both a reciprocatory and oscillatory movement either in connection with the rotating cylindrical grate or independent thereof, and the means herein shown by which said oscillatory grate is supported permit the same to be easily shifted for the purpose of dumping. When in its normal fixed position, the grate is held against any movement due to the operation of the rotating grate, which carries into contact with the grate C the ashes and grinds the same into small particles free to pass between the teeth B4 and the edge of the grate C into the ash-pit.

It will be obvious that changes may be made in the details of construction and configurations of the grate-bars and other features of structure without departing from the spirit of the invention as defined by the appended claims.

Having described my invention, what I claim is v 1. In agrate, the combination withaframe provided with a rotating grate-bar, of an oscillatory du mp-bar mounted in said frame to be reciprocated longitudinally of said rotating bar, a support on the frame for engaging and supporting one end of said oscillatory bar when reciprocated in one direction, and a stop at the opposite end of said bar to engage said frame when the bar rests upon said support; substantially as specified.

2. In a grate, the combination with a framework having bearings therein, a rotating grate mounted in said bearings, an oscillatory grate mounted for reciprocation in said frame, a flange at one end of said frame upon which said oscillatory grate may rest, and a stop at the opposite end of said oscillatory grate adapted to engage said framework to prevent sagging of the grate when one end rests upon mounted in said frame, aflange at one end of said frame upon which said oscillatory grate may rest, a stop at the opposite end of said oscillatory grate to prevent dumping of the same, a plate extending from the end of said grate next said stop and provided with an aperture to permit a reciprocatory and oscillatory movement of the stop; substantially as specified.

4:. In a grate, the combination with a framework having bearings therein, a rotating grate mounted in said bearings, an oscillatory grate mountcd'in said frame, a flange at one end of said frame upon which said oscillatory grate mayrest, a stop at the opposite end of said oscillatory grate to prevent dumpingfof the same, a plate extending from the end ol' said grate next said stop and provided with an aperture to permit a reciprocatory and oscillatory movement of the stop, and a lug at the l opposite end of said frame to limit the reciprocatory movement of the oscillatory grate toward the same; substantially as specified.

5. In agrate, the combination with a framework provided withfront and rear bearings,

a rotating grate supported in the front bearings, an oscillating grate supported in the 

